{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:O7IB6PQQVFHQGMDUSHW56U3MEB","short_pith_number":"pith:O7IB6PQQ","canonical_record":{"source":{"id":"2608.03551","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-08-04T12:23:23Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3eb52cb99a18588d20ecdd07feb1bdb79980a02d71b778613af28336500b1f1a","abstract_canon_sha256":"474d4e24689795b3c64991426222267aa928e5f169d50bb00f0f133dcadca460"},"schema_version":"1.0"},"canonical_sha256":"77d01f3e10a94f03307491eddf536c205ab157ba6b32e47a4930274cb269d11f","source":{"kind":"arxiv","id":"2608.03551","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.03551","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"arxiv_version","alias_value":"2608.03551v1","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.03551","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_12","alias_value":"O7IB6PQQVFHQ","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_16","alias_value":"O7IB6PQQVFHQGMDU","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_8","alias_value":"O7IB6PQQ","created_at":"2026-08-05T01:36:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:O7IB6PQQVFHQGMDUSHW56U3MEB","target":"record","payload":{"canonical_record":{"source":{"id":"2608.03551","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-08-04T12:23:23Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3eb52cb99a18588d20ecdd07feb1bdb79980a02d71b778613af28336500b1f1a","abstract_canon_sha256":"474d4e24689795b3c64991426222267aa928e5f169d50bb00f0f133dcadca460"},"schema_version":"1.0"},"canonical_sha256":"77d01f3e10a94f03307491eddf536c205ab157ba6b32e47a4930274cb269d11f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-05T01:36:37.804340Z","signature_b64":"d8rrto6UkcDZG8aBipE2Zdw7Kq9kIhJi4zmoXn0pRML1bODrjrLNSdiWhgh2Av62qkF7fO0bDIinImXQmioJAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77d01f3e10a94f03307491eddf536c205ab157ba6b32e47a4930274cb269d11f","last_reissued_at":"2026-08-05T01:36:37.802643Z","signature_status":"signed_v1","first_computed_at":"2026-08-05T01:36:37.802643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.03551","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-05T01:36:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+aAufZniuYug2RDH8x2tBEVEHNmZBYrebL2Hib7tmKxYTFwWfx/LMQ5ZoPwZZBL2Mn/omd/nA38INl8fhdpSCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T05:02:18.412321Z"},"content_sha256":"abc1a40ae748b01c64857546b4e23ff3c5ef82f61d5c9eeb8135ca6706415029","schema_version":"1.0","event_id":"sha256:abc1a40ae748b01c64857546b4e23ff3c5ef82f61d5c9eeb8135ca6706415029"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:O7IB6PQQVFHQGMDUSHW56U3MEB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emergence and Detection of Surface altermagnetism in KV$_2$Se$_2$O","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Alexander Mook, Atasi Chakraborty, Colin Lange, Jairo Sinov, Rodrigo Jaeschke-Ubiergo, Sergio Rodriguez, Xanthe H. Verbeek","submitted_at":"2026-08-04T12:23:23Z","abstract_excerpt":"We demonstrate the recent concept of emergent surface altermagnetism through its unique signatures in \\KVSO. We show that for bulk antiferromagnetically ordered \\KVSO, the (001) surface exhibits $d$-wave altermagnetism. Our results fully explain the recent seemingly contradicgting experimental evidence, independently showing both an antiferromagnetically ordered bulk from neutron diffraction, and $d$-wave spin splitting from photoemission spectroscopy. To fully verify this conecept, we predict, as a key experimental signature, a large nonlinear Edelstein response, which is localized at the sur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.03551","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.03551/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-05T01:36:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"USl4OIxqK2F/S+VE6+6/h2Ni4SIY+C5lVKus9KldJEHrGuKN14+dO/DkOYAh+uiC+/OiwvUxIH1ABGsXZCAdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T05:02:18.412850Z"},"content_sha256":"d139e99fcbb4e769ab31947c133f90a5a9f51b4929f4c9b04a06de07ade308ea","schema_version":"1.0","event_id":"sha256:d139e99fcbb4e769ab31947c133f90a5a9f51b4929f4c9b04a06de07ade308ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/bundle.json","state_url":"https://pith.science/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-16T05:02:18Z","links":{"resolver":"https://pith.science/pith/O7IB6PQQVFHQGMDUSHW56U3MEB","bundle":"https://pith.science/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/bundle.json","state":"https://pith.science/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O7IB6PQQVFHQGMDUSHW56U3MEB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:O7IB6PQQVFHQGMDUSHW56U3MEB","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"474d4e24689795b3c64991426222267aa928e5f169d50bb00f0f133dcadca460","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-08-04T12:23:23Z","title_canon_sha256":"3eb52cb99a18588d20ecdd07feb1bdb79980a02d71b778613af28336500b1f1a"},"schema_version":"1.0","source":{"id":"2608.03551","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.03551","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"arxiv_version","alias_value":"2608.03551v1","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.03551","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_12","alias_value":"O7IB6PQQVFHQ","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_16","alias_value":"O7IB6PQQVFHQGMDU","created_at":"2026-08-05T01:36:37Z"},{"alias_kind":"pith_short_8","alias_value":"O7IB6PQQ","created_at":"2026-08-05T01:36:37Z"}],"graph_snapshots":[{"event_id":"sha256:d139e99fcbb4e769ab31947c133f90a5a9f51b4929f4c9b04a06de07ade308ea","target":"graph","created_at":"2026-08-05T01:36:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.03551/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate the recent concept of emergent surface altermagnetism through its unique signatures in \\KVSO. We show that for bulk antiferromagnetically ordered \\KVSO, the (001) surface exhibits $d$-wave altermagnetism. Our results fully explain the recent seemingly contradicgting experimental evidence, independently showing both an antiferromagnetically ordered bulk from neutron diffraction, and $d$-wave spin splitting from photoemission spectroscopy. To fully verify this conecept, we predict, as a key experimental signature, a large nonlinear Edelstein response, which is localized at the sur","authors_text":"Alexander Mook, Atasi Chakraborty, Colin Lange, Jairo Sinov, Rodrigo Jaeschke-Ubiergo, Sergio Rodriguez, Xanthe H. Verbeek","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-08-04T12:23:23Z","title":"Emergence and Detection of Surface altermagnetism in KV$_2$Se$_2$O"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.03551","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:abc1a40ae748b01c64857546b4e23ff3c5ef82f61d5c9eeb8135ca6706415029","target":"record","created_at":"2026-08-05T01:36:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"474d4e24689795b3c64991426222267aa928e5f169d50bb00f0f133dcadca460","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-08-04T12:23:23Z","title_canon_sha256":"3eb52cb99a18588d20ecdd07feb1bdb79980a02d71b778613af28336500b1f1a"},"schema_version":"1.0","source":{"id":"2608.03551","kind":"arxiv","version":1}},"canonical_sha256":"77d01f3e10a94f03307491eddf536c205ab157ba6b32e47a4930274cb269d11f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77d01f3e10a94f03307491eddf536c205ab157ba6b32e47a4930274cb269d11f","first_computed_at":"2026-08-05T01:36:37.802643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-05T01:36:37.802643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d8rrto6UkcDZG8aBipE2Zdw7Kq9kIhJi4zmoXn0pRML1bODrjrLNSdiWhgh2Av62qkF7fO0bDIinImXQmioJAg==","signature_status":"signed_v1","signed_at":"2026-08-05T01:36:37.804340Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.03551","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abc1a40ae748b01c64857546b4e23ff3c5ef82f61d5c9eeb8135ca6706415029","sha256:d139e99fcbb4e769ab31947c133f90a5a9f51b4929f4c9b04a06de07ade308ea"],"state_sha256":"791348280e79c28fdea0a99667711d345423b1092303d237bdb2365ea8c873c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L3ZxmXwy8+gslx2aUZLeWO8hQp08TyoTpx9FPGjtJLFGu2UnEPbALO87peJHTWN7IflvVpZ+hmVIHPSo8DzMBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T05:02:18.416975Z","bundle_sha256":"890ea8a492a8eff3e9fed59504f82ab3a7ad4a7d4d3b00bc24d68fae03a7d9bb"}}